1986 Ski-Doo Factory Shop Manual, Page 37Get this manual
Section 02 ENGINE Sub-section 01 (247 ENGINE TYPE) 312.16, Studs or bolts&nuts
Torque the nuts or bolts to 21 N.m (15 Ib1 ftl following Illustrated sequenceInside iiJ)
facing towards th.e crankcase
Chamfered side towards the
crankshaft bearIng
15Seals
To install new seal into crankcase use an appropriate oil seal pusher as illustrated(See Tools Section)
22, Engine mount nuts
Torque the engine mount nuts to 38 Nm (28 Ibf.ft),
13, Labyrinth ring
Position labyrinth ring with bevelled side on top